Vertex aka max or min point is found by -b/2a in form
f(x)=ax^2+bx+c
f(x)=-1x^2+8x+20
vertex x value is -8/(2)(-1)=-8/-2=4
input back to find y value
f(4)=-(4^2)+8*4+20
f(4)=-16+32+20
f(4)=36
max (since the graph opens down) is (4,36)
axis of symmetry is the x coordinate
max is (4,36)
axis of symmetrry is x=4
Answer:
C. Figure out how much you need, then comparison shop using the Web and other resources.
Step-by-step explanation:
Answer:
21 bikes and 3 tricycles
Step-by-step explanation:
21 items
51 wheels
42 wheels=21 bikes
51-42=9
9/3=3 tricycles
Hello!
The recursive rule for an arithmetic sequence: 
.
The explicit rule for an arithmetic sequence: 
.
is the value you are trying to find, or simply the answer. :)
is the common difference of the sequence.
is the first term of the sequence.
Given, 
and 
...
The common difference is -6, and the first term is 8.
Plug these values into the explicit rule for an arithmetic sequence, you get:
.
Therefore, the answer is A, 
.
If you wondered why, is equal to , the Commutative Property of Multiplication states that when two numbers are multiplied together, the answer is the same regardless of the order of the numbers, which makes and equal to each other.
To find the area of any rectangle you multiply length times width.
8,1/2*11
17/2*11/1
187/2
93.5 or 93, 1/2.
For the second bit you just divide 1000 by 93.5. 1000/93.5=10.7 So ten pieces. Hope this helps! <span />
